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EXHIBIT 21.01
SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, INC.
AS OF MARCH 12, 2000
NAME OF SUBSIDIARY PERCENT OWNED
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Alamo Gulf Coast Railroad Company, a Texas corporation 99.5%(1)
American Aggregates Corporation, a Delaware corporation 100%
American Stone Company, a North Carolina corporation 50%(2)
B&B Gravel Company, a Texas corporation 100%(3)
B&B Materials and Hauling, Inc., a Texas corporation 100%(4)
Bahama Rock Limited, a Bahamas corporation 100%
Bayou Mining, Inc., a Louisiana corporation 100%
Caldwell/Mellott, Inc., a North Carolina corporation 100%
Central Rock Company, a North Carolina corporation 100%
Eastside Development Limited Partnership, a Texas limited partnership 99%(5)
Fredonia Valley Railroad, Inc., a Delaware corporation 100%
Harding Street Corporation, a Delaware corporation 100%
Martin Marietta Aggregates of Arkansas, Inc., a Delaware corporation 100%
Martin Marietta Aggregates of Iowa, Inc., an Iowa corporation 100%
Martin Marietta Aggregates of Southern Iowa, Inc., an Iowa corporation 100%
Martin Marietta Composites, Inc., a Delaware corporation 100%
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1 Alamo Gulf Coast Railroad Company is owned by Martin Marietta Materials
Southwest, Inc. (99.5%) and certain individuals (0.5%).
2 Central Rock Company, a wholly-owned subsidiary of the Company, owns a 50%
interest in American Stone Company.
3 B&B Gravel Company is a wholly-owned subsidiary of Martin Marietta
Materials Southwest, Inc.
4 B&B Materials and Hauling, Inc. is a wholly-owned subsidiary of by Martin
Marietta Materials Southwest, Inc.
5 Eastside Development Limited Partnership is owned by Martin Marietta Materials
Southwest, Inc. (99%) and Redland Development Company (1%), a wholly-owned
subsidiary of Martin Marietta Materials Southwest, Inc.
2
Martin Marietta Exports, Inc., a Barbados corporation 100%
Martin Marietta Magnesia Specialties Inc., a Delaware corporation 100%
Martin Marietta Materials Canada Limited, a Nova Scotia, Canada corporation 100%
Martin Marietta Materials Canada Holdings Limited, a Nova Scotia, Canada 100%(6)
corporation
Martin Marietta Materials of Louisiana, Inc., a Delaware corporation 100%
Martin Marietta Materials de Mexico, S.A. de C.V., a Mexican corporation 100%(7)
Martin Marietta Materials Southwest, Inc., a Texas corporation 100%
Martin Marietta Materials of Tennessee, Inc., a Delaware corporation 100%
Martin Marietta Materials of Texas, Inc., a Delaware corporation 100%
Martin Marietta Technologies Corp., a Delaware corporation 100%
Meridian Aggregates Investments, LLC, a Delaware limited liability company 28.23%
Mid-State Construction & Materials, Inc., an Arkansas corporation 100%(8)
Midway Holding Company, LLC, a Delaware limited liability company 14.5%(9)
OK Sand & Gravel, LLC, a Delaware limited liability company 99%(10)
R&S Sand & Gravel, LLC, a Delaware limited liability company 99%(11)
Redland Development Company, a Texas corporation 100%(12)
Redland Park Development Limited Partnership, a Texas limited partnership 87.5%(13)
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6 Martin Marietta Materials Canada Holdings Limited is a wholly-owned subsidiary
of Martin Marietta Materials Canada Limited.
7 Martin Marietta Materials de Mexico, S.A. de C.V. is owned by Martin Marietta
Magnesia Specialties Inc. (99%) and Martin Marietta Materials, Inc. (1%).
8 Mid-State Construction & Materials, Inc. is a wholly-owned subsidiary of
Martin Marietta Materials of Arkansas, Inc.
9 Midway Holding Company, LLC is owned 14.5% directly by Martin Marietta
Materials and 28.23% indirectly through Meridian Aggregates Investment, LLC.
10 Martin Marietta Materials, Inc. is the manager of and owns a 99% interest in
OK Sand & Gravel, LLC.
11 Martin Marietta Materials, Inc. is the manager of and owns a 99% interest in
R&S Sand & Gravel, Inc.
12 Redland Development Company is a wholly-owned subsidiary of Martin Marietta
Materials Southwest, Inc.
13 Redland Park Development Limited Partnership is owned 87.5% by Martin
Marietta Materials Southwest, Inc. directly and through its subsidiaries and
12.5% by Quarry, Inc., an unaffiliated corporation.
3
Redland Stone Development Company, a Texas corporation 100%(14)
Superior Stone Company, a North Carolina corporation 100%
Theodore Holding, LLC, a Delaware limited liability company 51%(15)
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14 Redland Stone Development Company is a wholly-owned subsidiary of Martin
Marietta Materials Southwest, Inc.
15 Superior Stone Company, a wholly-owned subsidiary of the Company, is the
manager of and owns a 51% interest in Theodore Holding, LLC.